Disposable diaper



- Aug. 14, 1951 R. J. BRANDL DISPOSABLE DIVAPER Filed May 6, 1946 RBERT J. BRANDL.

@2M Ulnn lposed of.

atented u'g. 14, 195:1

I2,stima UNITED STATES PATENT OFFICE DISPOSABLE DIAPER Robert J. Brandl, St. Paul, Minn.

Application May 6, 1946, Serial No. 667,654

(Cl. 12S- 284) 3 Claims.

Y 1 My invention relates to an improvement in disposable diaper wherein it is desired to provide a diaper formed of paper or the like.

The object of the present invention is to provide a diaper which may be used once and dis- My diaper may be made at low cost and will act to eliminate the necessity of washing the diapers at frequent intervals.

A feature of the present invention resides in the provision of a diaper having a body of paper having the property of absorbing considerable amounts of liquid. This body is preferably provided on its outer surface with a layer of relatively more moisture-proof paper. This latter layer of paper increases the tensile strength of the diaper to a considerable extent and forms a protection for the absorbent paper body.

A feature of the present invention resides in the provision of a diaper designed with a bano to encircle the body of an infant and a second band designed to extend between the legs of the infant from the back to the front thereof. This second band engages the ends of the body 'encircling band to hold the diaper in place.

A feature of the present invention resides in the manner of holding the diaper in place. The ends of the body encircling band overlap and are provided with registering slots. The second band is designed to pass through these slots and thus lock the diaper in position.

These and other objects and novel features of my invention will be more clearly and fully set forth in the following specification and claims.

In the drawings forming a part of my specification:

Figure 1 is a perspective view of a diaper showing my new construction.

Figure 2 is a diagrammatic View of the diaper in flat form.

Figure 3 is a perspective view of my diaper in folded condition showing a modified manner of attaching the diaper in place.

Figure 4 is a cross sectional view through the diaper shown in Figure 3, the position of the section being indicated by the line 4-4 of Figure 3.

Figure 5 is a sectional view through a portion of the diaper showing the relatively absorbent and relatively non-absorbent layers of which the diaper is formed. y

The diaper is constructed as best illustrated in Figure 2 of the drawings. A band I0 is provided connected to the diaper body II. The

band III is composed of two oppositely projecting K1 2 Istrap portions I2 and I3 which are designed to extend about the sides of the infant and to overlap in the front of the body. Slots I4 and I5are provided in the band I0 near the extremities thereof.

The diaper body II is designed to extend downwardly from the band I0 and to pass between the legs of the infant. The body II is of sufficient width to cover a relatively wide area at the rear of the infant. The relatively wide body portion in folded Vforrn of the diaper extends substantially to the lower edge of the band I0 at the front of the body when the diaper is'in place.

The bodyv II extends at substantially right angles to the band Ill and a strap IB extends integrally from the end thereof. This strap I6 is designed to hold the body portion I I in proper position by extending through the slots I4 and I5. The slots I4 and I5 are of a width I'I somewhat greater than the width I9 of the strap I6 to simplify the attachment of the diaper.

The diaper may be attached either in the manner illustrated in Figure 1 of the drawings or in the manner shown in Figure 3. In Figure 1 the strap end I2 overlaps the strap end I3 so that the slots I4 and I5 are in substantial registry. The strap IS is then forced through the slots I4 and I5 and drawn upwardly until the body portion II extends close to the lower edge of the band I0. The extremity of the strap I6 is then folded downwardly to overlie the overlapped ends of the band I0, the extremity of the strap I6 being tucked between the band I0 and the attached end of the strap or band I6. In other words, the strap I6 is pulled through the slots I4 and I5 until the diaper is in place and the end of the strap I6 is then folded downwardly and tucked under the attached end of the band I6 near the body II.

Figures 3 and 4 of the-drawings show a slightly different way of attaching the diaper in place. In this arrangement lthe strap I6 is tucked through the slots I4 and I5, drawn upwardly interiorly of the ends of the band III, folded down to overlie the slots I4 and I5 again and the end of the strap again tucked through these slots. This arrangement is clearly illustrated in Figure 4 of the drawings.

The diaper is preferably formed of extremely soft absorbent paper of a type now manufactured and used. This absorbent material is capable of holding considerable quantities of liquid. This absorbent material may comprise a single ply of absorbent material of any desired thickasegoofi ness to absorb the reduired moisture. If desired, however, the paper may comprise a sheet formed of a considerable number of plies of absorbent paper to produce the desired thickness. This latter structure is more conventional and is desirable because of its flexibility and greater absorption. In Figure 5 of the drawings the absorbent body is indicated by the numeral 20. This body is adhered or otherwise affixed to a sheet 2|` which is relatively lesst absorbent and which isof'considerably greater tensile strength. The sheet 2| is designed to form a cover for the absorbent body sheet 20 and also to increase the strength of the diaper.

As previously described the slots I4 and I5 are somewhat greater in length than the width of the strap or band I6. In attaching the ends of the band I together it is usual practice to overlap the ends I2 and I3 so that the slots I4 and I5 register. The band I6 may then be readily tucked through the registering slots and pulled upwardlyfalong the inner' surface of the'band. During this procedure the ends of the'band I0 are held in proper relationship. As soon as the ends of the band I0 are released the band expands somewhat sorthat the end of each slot nearest the adjacent-'end of theband moves into engagement with one'side 4of the strap or band I6. Thus while the diaper is simple to attach because of the lengthof the slots I4 and I5, the slots will only be in registry alength equal tothe width of the band I9 after the diaper has been fastened.

In accordance with the patent statutes, I have described the principles of construction and use of my disposable diaper, and while I have endeavored to set forth theV best embodiments thereof, I desire to have it understood that obvious changes may be made Within thescope of the following claims without departing from thc spirit of my invention.

I claim:

1. A diaper including a band designed to encircle the body of an infant, a body portion extending at substantially right angles to said band, slots in said band near each end thereof, and a projecting part on said body portion being designed to extend through said slots to hold said band in place.

2. A diaper including a band designed to encircle the body of an infant, slots in said band near each end thereof, a body portion extending at substantially right angles to said band from a point near the center thereof, and strap means in said body portion designed to extend through said slots to hold said diaper in place.

3. A diaper including a band having slots near the ends thereof, the ends of said band being arranged in overlapping relation with said slots at least partially in registryya body portion on saidxband extending at substantially right-angles thereto, and-strapvmeanson said-body portion extending through said slots and folded over the upper edge of saidband. Y ,I K

ROBERT J. BRANDL.

REFERENCES CITED The followingreferences are of record in the le of this patent:

NITEDn STATES PATENTS Number Name Date 1,741,881 Rich Dec; 3'1, 1'9'29 2,009,310 Dendoff July'23, 1935 2,058,509 Rose Oct.` 2'7, 1936 2,118,169Y Crouse May 24; 1938 2,290,110 McGraw July14, 1942 

